Intel MB820 user manual CN7 USB and LAN RJ45 Connectors, CN8 Audio Connector, J1 IrDA Connector

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INSTALLATIONS

CN7: USB and LAN RJ45 Connectors

CN7 consists of an RJ-45 connector (top) and two stacked USB ports. Refer to the section below for their respective pin assignments.

USB0

USB1

Pin #	Signal Name
1	Vcc
2	USB-
3	USB+
4	Ground

CN8: Audio Connector

CN8 is a 3-jack audio connector beside the

USB/RJ45 combo connector.

J1: IrDA Connector

J1 is used for an optional IrDA connector for wireless communication.

Pin #	Signal Name
1	+5V
2	No connect
3	Ir RX
4	Ground
5	Ir TX

J4: CD-In Audio Connector

Pin #	Signal Name
1	CD Audio R
2	Ground
3	Ground
4	CD Audio L

16	MB820 User’s Manual

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Contents USER’S Manual VersionAcknowledgments Table of Contents This page is intentionally left blank Checklist IntroductionProduct Description Board Dimensions Installations ATX Power Installation Installing the MemorySetting the Jumpers Jumper Locations on MB820 JP1 RS232/422/485 COM2 Selection JP2 COM1 RS232 +5V/+12V Power SettingJP3 COM2 RS232 +5V/+12V Power Setting JP6 COM4 RS232 +5V/+12V Power Setting JP4 Clear Cmos ContentsJP5 COM3 RS232 +5V/+12V Power Setting JP8 Onboard VGA Enable/Disable JP7 DiskOnChip Address SelectConnectors on MB820 Connector Locations on MB820 ATXP1 ATX Power Supply Connector ATXP2 ATX 12V Power ConnectorDIMM1, DIMM2 DDR Channel a Connectors DIMM3, DIMM4 DDR Channel B ConnectorsCN3, J3 Serial Ports CN1 PS/2 Keyboard and PS/2 Mouse ConnectorsCN2 4-port USB Connector CN4 Parallel Port Connector CN6 VGA CRT ConnectorCN7 USB and LAN RJ45 Connectors CN8 Audio ConnectorJ1 IrDA Connector J4 CD-In Audio ConnectorJ9 Wake On LAN Connector J5, J6 Serial ATA Sata ConnectorsJ8, J10 COM3 and COM4 Serial Ports Connector J11 Digital I/O Connector 4 in, 4 out J12 System Function ConnectorPower LED Pins 11 FAN3 Chassis Fan Power Connector FAN1 CPU Fan Power ConnectorFAN2 VGA Fan Power Connector FDD1 Floppy Drive Connector RM/LCIDE, IDE2 Primary and Secondary IDE Connectors IRQ15Watchdog Timer Configuration Sample CodeMov Cl, 0F5h Call ReadReg Al, not 08h Call WriteReg Out dx, al Installations Bios Setup Bios Introduction Bios SetupPhoenix AwardBIOS Cmos Setup Utility Standard Cmos Setup DateDrive a / Drive B TimeIDE Primary HDDs / IDE Secondary HDDs Video Halt OnAdvanced Bios Features Hard Disk Boot PriorityQuick Power On Self Test CPU L1 and L2 CacheFirst/Second/Third Boot Device Boot Other DeviceBoot Up Floppy Seek Boot Up NumLock StatusApic Mode Security OptionMPS Version Control for OS OS Select for Dram 64MBAdvanced Chipset Features AGP Aperture Size Integrated Peripherals IDEIDE HDD Block Mode IDE DMA Transfer AccessOnChip Primary/Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOOn-Chip Serial ATA USB ControllerUSB 2.0 Controller USB Keyboard SupportChip Select Pin Uart Mode SelectParallel Port Mode Acpi Function Power Management SetupPower Management Suspend Mode HDD Power DownVideo Off Method Video Off In SuspendPower On by Ring Resume by AlarmReload Global Timer Events Wake Up On LANPNP/PCI Configurations PNP OS InstallReset Configuration Data Resources Controlled byCPU Warning Temperature Temperatures/Fan Speeds/VoltagesShutdown Temperature PC Health StatusSpread Spectrum Frequency/Voltage ControlAuto Detect DIMM/PCI Clk Load Fail-Safe Defaults Load Setup DefaultsSet Supervisor/User Password Save & Exit SetupDrivers Installation Intel 875P Chipset Software Intallation Utility Drivers Installation Drivers Installation Realtek AC97 Codec Audio Driver Installation Intel PRO LAN Drivers Installation VGA Drivers Installation Drivers Installation